"The Wheel Spins" is the novel about young and bright Iris Carr, who is on her way back to England after spending a holiday somewhere in the Balkans. After she is left alone by her friends, Iris catches the train for Trieste and finds company in Miss Froy, chatty elderly English woman. When she wakes up from a short nap, she discovers that her elderly travelling companion seems to have disappeared from the train. After her fellow passengers deny ever having seen the elderly lady, the young woman...